參數(shù)資料
型號: DS83C520
廠商: Maxim Integrated Products, Inc.
英文描述: EPROM/ROM High-Speed Micro(EPROM/ROM高速微控制器)
中文描述: EPROM/ROM高速微控制器
文件頁數(shù): 1/38頁
文件大?。?/td> 476K
代理商: DS83C520
DS87C520/DS83C520
EPROM/ROM High–Speed Micro
DS87C520/DS83C520
PRELIMINARY
070798 1/38
FEATURES
80C52 compatible
– 8051 pin and instruction set compatible
– Four 8–bit I/O ports
– Three 16–bit timer/counters
– 256 bytes scratchpad RAM
Large On–chip Memory
– 16KB Program Memory
– 1KB extra on–chip SRAM for MOVX
ROMSIZE Feature
– Selects internal ROM size from 0 to
16KB
– Allows access to entire external memory map
– Dynamically adjustable by software
– Useful as boot block for external FLASH
High–Speed Architecture
– 4 clocks/machine cycle (8051 = 12)
– Runs DC to 33 MHz clock rates
– Single–cycle instruction in 121 ns
– Dual data pointer
– Optional variable length MOVX to access fast/
slow RAM/peripherals
Power Management Mode
– Programmable clock source to save power
– CPU runs from (crystal/64) or (crystal/1024)
– Provides automatic hardware and software exit
EMI Reduction Mode disables ALE
Two full–duplex hardware serial ports
High integration controller includes:
– Power–fail reset
– Early–warning power–fail interrupt
– Programmable Watchdog timer
13 total interrupt sources with 6 external
Available in 40–pin PDIP, 44–pin PLCC, 44–pin
TQFP, and 40–pin windowed CERDIP
Factory Mask DS83C520 or EPROM (OTP)
DS87C520
PACKAGE OUTLINE
ALE/PROG
PSEN
P2.7
P2.6
P2.5
P2.4
P2.3
P2.2
P2.1
P2.0
V
SS
EA/V
PP
P3.7/RD
XTAL2
XTAL1
P3.6/WR
P3.3/INT1
P3.4/T0
P3.5/T1
P3.2/INT0
P1.7/INT5
P1.5/INT3
P1.6/INT4
DALLAS
DS87C520
DS83C520
VCC
P0.0
P0.1
P0.2
P0.3
P0.4
P0.5
P0.6
P0.7
P1.0/T2
P1.1/T2EX
P1.2/RXD1
P1.3/TXD1
P1.4/INT2
RST
P3.0/RXD0
P3.1/TXD0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
440–PIN PDIP
DALLAS
DS87C520
DS83C520
DALLAS
DS87C520
DS83C520
44–PIN PLCC
44–PIN TQFP
23
33
22
12
34
44
1
11
1
40
6
7
17
29
39
18
28
相關(guān)PDF資料
PDF描述
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DS83C530-DS87C530 EPROM/ROM Microcontrollers with Real-Time Clock
DS83C530-ECL EPROM/ROM Microcontrollers with Real-Time Clock
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
DS83C520_07 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:EPROM/ROM High-Speed Microcontrollers
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DS83C520-ECL 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:EPROM/ROM High-Speed Micro
DS83C520-ECL+ 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:EPROM/ROM High-Speed Microcontrollers